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Finding the Fourth Proportional to 967,375.80, 1,451,063.70 and 489,078.90

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Solution

The fourth proportional to 967,375.80, 1,451,063.70 and 489,078.90 is: 733,618.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    967,375.80 : 1,451,063.70 = 489,078.90 : x
  2. Step 2: Convert to fraction form
    967,375.80/1,451,063.70 = 489,078.90/x
  3. Step 3: Cross multiply
    967,375.80x = 1,451,063.70 × 489,078.90
  4. Step 4: Simplify right side
    967,375.80x = 709,684,638,225.93
  5. Step 5: Solve for x
    x = 709,684,638,225.93/967,375.80
  6. Step 6: Final answer
    x = 733,618.35

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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.